Khamenei assumed power following the death of Ayatollah Ruhollah Khomeini in 1989, inheriting a revolutionary state still consolidating itself.

Ayatollah Ali Khamenei, who reigned as Iran’s supreme leader for the past 36 years, was killed in a sweeping U.S. and Israeli attack on the country Saturday.

The U.S. and Israel are pounding targets across Iran, dropping massive bombs on its ballistic missile sites and wiping out warships

After US-Israel strikes kill Islamic Republic's Supreme Leader Ayatollah Ali Khamenei, some Iranians feel fear and fragile hope.

Though some Iranians mourned the death of their supreme leader, others rejoiced. Their celebrations were furtive and short-lived to avoid riot police or other authorities.

For many Iranians, the day began with the news they had feared.

The New York Times faced criticism for calling Iran's supreme leader Ayatollah Ali Khamenei a "hard-line cleric" that made Iran a "regional power" in a obituary headline.

Ayatollah Khamenei became Iran’s supreme leader in 1989, wielding ultimate religious and political authority over the state and security apparatus.

By Gram Slattery and Erin Banco March 1 (Reuters) - Following the killing of Iran's Supreme Leader Ayatollah Ali Khamenei on Saturday, many senior U.S. officials remain skeptical that the U.S. and Israeli military operation against the Islamic Republic will lead to a regime change in the near term.

Three close allies of the United States said Sunday they are ready to join forces to defend their interests in the Middle East and stop Iran’s retaliatory missile and drone strikes following the killing of Supreme Leader Ayatollah Ali Khamenei,

Some Iranians said on social media that they were privately mourning the supreme leader. But displays of exuberance broke out in cities across the country.